| 摘要 |
A method and apparatus implement network planning in a radio system in a desired area. To determine transmitter coverage, a vector map describing the surroundings of the transmitter and containing a description of buildings and surfaces reflecting radio waves in the area is used. The transmitter signal strength is measured at points of a desired area. A subset is selected among the points, path attenuation is determined between all subset points using a ray tracing method, and the calculated values are stored in a memory. When performing network planning, a transmitter and a receiver are located at the points in the areas; a given number of the most significant signal paths among the possible signal propagation paths between the transmitter and the receiver is searched for using the values stored in the memory, and the transmitter signal strength is determined at the receipt location point using the ray tracing method. |
